Spot-light.



l. C. STEARNS.

SPOT LIGHT. APPLICATION FILED JAN. 18. IBM.

1,266,606. Patnted Eeb. 19,1918

?3 W MAFESACI'USEETS.

filed 1; enaai'y 3.8, 191 .27. serial I! 0. H3385.

known 1, Jiisoic G. S emens, a of the gnited Statea, resisting at in. the county Worcester and. 9 ave invested a new grit, 01" W ich me foiloe an ii'ripreved :11 11118 it on and off located and. aisc to provice ificiiiioe of the and 3 -2 c pe-site e110. fiifiv'iltlOJ. cf the civic sectic-n on the 3c enri 'aicyimdricai as is usual in a waiicl flanges ier by a screw ei metal cyL s 'zider the usual slots a.- the lamp Tease '6. rubber other epriteg; plungers r. L r c to the liar-rip.

figeeci icatiort of Letters Patent.

' end. of its travel.

(ier 88. These slots are offset, rearwartlly both ends so that as the member 43 is turnecr into either extreme position the hard. rub

oer cylinder. 40 is forced. outwardly from the lamp. The operator then ieels the resistance and knows the iz'imp is turned fully on or The springs of the plungers il force it back into the ofiset portions of the sioc at each It will he noted the" piungers. 41 move. with that these slots limit the inc ierv to a quarter turn. They are so arthe f this cylinder and motion ot the eye ranged that in one extreme position the plunge-rs are in contact with the lamp teranimals ofi; It Wiii be seen that the entire switch is located Within the main casing :23 and nos;

in a handle.

d in the otherextremeposition 1 ll v thcyare ninety degrees i'rom the same ace out of Contact, so that. the lamp is turned 'l he member 43 e itencis outbeyondl'the cylinder and is provided with a non-'ci'r-f culzir key 510 at its end by which the ian p is turned on and. off by the, mechanism new to be described. The mechanism for operating the switch is supported by the casing at. which has a fiat perforatedend. .A. sheet,

mctal casing 426 or switch handle is located in axial alinement with the lamp casin 23 and centraiiy with respect thereto. casing is provided with an integral flange H, and it a central cylindrical portion 48. The flange is for receiving a cap member 49. This member 49 is of sheet metal and is fixed on the casing 16 which is capable of being turned on its axis. lt formstheend' of the casing 23-21116. has a fiat inner eiici'iitting the-same. The cylindricai portion is screw threaded and extends into the lamp casing to receive a holding out 51 and spring iasher 52 for clamping the partsrotatabiy 1'11 position.

The key member is located inside these parts. it fits in a hole &5 in the member 48 provides means whereby the member can be turned. back and. forth by the casing It wiii be eecn that the member i-i9 provides for coiivenientiy turning the light on and in this way e. simpie and safe t is made for manipuiating the light, an he constriction and .asserahiy of the parts is cheap and convenient.

Although I have iiiustrateri' 'cnlty singie form of the invention am were of the em that Emmi-memoriecega and .lescriheci j made therein by any person skilled in the art without departing from the scope of the invention as expressed in the claims. Therefore, I do not wish to be limited to all the details of construction herein shown and de scribed, but what I do claim is 1. In a spot-light, the combination of a casing and an internal reflector spaced apart,

a hollow metallic cylinder concentric therewith, said reflector having a hollow split hub on its rear surface forsecuring said cylinder therein, said cylinder constituting a socket for receiving a lamp base, a switch for the lamp located entirely within said casing and comprising a cylindrical member inside the end of said cylinder having conducting plungers for engaging the lamp terminals when the lamp is 1n position in the socket, and means mounted on and extending rearwardly from the casing for turning said insulating cylinder and thus turning the lamp on and off.

2. The combination of a lamp casing, a cylinder concentric therewith constituting a socket for receiving a lamp base, a cylindrical insulating member having conducting plungers for engaging the lamp terminals when the lamp is in position in the socket, a skeleton member mounted on said'socket cylinder, means inside the casing for connecting said skeleton member with the insulating member to cause them to turn together, and means outside the casing for turning the skeleton member.

I 3. In a spot-light, the combination of a lamp casing and an internal reflector spaced apart, a hollow metallic cylinder concentric therewith, said reflector having a hollowsplit hfub on its rear surface for securing said cylinder thereto, said cylinder constituting a socket for receiving a lamp base, an insulating cylindrical member inside the end of said metallic-cylinder having conducting plungers for engaging'the lamp terminals when the lamp is in position in the socket, a skeleton member outside the conducting cylinder, means for connecting said skeleton member with the insulating cylindrical member to cause them to turn together, said metallic cylinder having a guide for limiting the motions of the cylindrical insulating member, and means carried by the casing for turing the skeleton member;

4. The combination of a lamp casing, a socket for receiving alamp base, an insulat ing cylindrical member having conducting plungers for engaging the lamp terminals When the lamp is in position in the socket, a skeleton member connected with the insulating cylinder to cause them to. turn toethe'r, said lamp socket havingguide-slots ior limiting the motions of the cylindrical insulating member, said .slots extending about one-quarter way around-the same and having offset portions at their ends extend ing away from the main body of the slot, and means for connecting the skeleton member and insulating member comprising a pin extending throughthe same and through both slots.

5. In a spot-light, the combination of a casing, a hollow metallic cylinder concentric therewith, said cylinder constituting a socket for receiving a lamp base, an insulating cylindrical member inside the end of said cylinder having conducting plungers for engaging the lamp terminals when the lamp is in position in the socket, a skeleton member outside the insulating cylindrical member, means for connecting said skeleton member with the cylindrical member to cause them to move together, and means for turning the skeleton member comprising an auxiliary casing adapted to be turned. on its own axis, and a key member turning with it and arranged to engage and turn the end of the skeleton member.

6. The combination of a lamp casing having an axial end casing concentric therewith and oscillatable on its axis, said end casing having a cylindrical portion at its inner end,

v means at the inner end of said end casing for turning a lamp in the casing on. and off, a key member having means for turning the lamp operating means, and means on said cylindrical end for turning the key member.

7. The combination of a lamp casing having a flat end and an axial end casing concentric therewith, with means at the inner end of said end casing for turning a lamp in the casing on and off, comprising a key memher, said end casing having a flat shoulder on its inner end fitting the fiat end of the casing and having a threaded portion extending through said flat end, a spring washer and nut on said threaded portion inside the lamp casing, so "that the end casing can be. turned on its own axis for turning the lamp on and ofi.

8. The combination of a lamp casing and an axial end" casing or handle concentric therewith, with means at the inner end of said end casing for turning the lamp in the easing on or off, said means comprising a key member, said end casing having a threaded portion extending through the lamp casing, and a nut on said threaded portion inside the lamp casing for holding the end casing, said end casing being rotatahly connected with the lamp casing so that it can be turned on its own axis independently of the lamp sition in the socket, means outside the insulating cylindrical member for turning the lamp on and of, means for conneciing said outside means with the cylindrical member to cause them to move together, an auxiliary casing mounted on the lamp casing and adapted to be turned on its own axis for turning said outside means, and a key member turning with the auxiliary casing and arranged to engage and turn the end of said outside means.

10, An electric swilcb connection including a socket, a lamp secured in said socket, having a contact point thereon, a removable insert in said socket, a contact on said insert in position to engage the coniact on said lamp, 3 switch member adapted to engage and operate said removable insert, a lamp casing, an external switch handle, and means connected with said handle and extending through said casing for engaging and operaiingsaid switch member so as to make and break contact when said handle is operated.

11. An electric switch connection including a socket, a lamp secured in said socket, having double contact points, a removable insert in'said socket, contacts en said insert adapted to said lamp, outwardly extending pins in said insert, a switch member adapted to engage said pins, a lamp casing, an external switch handle, and. means connected with said handle and extending through said casing for engaging and operating said switch member so as to make and break contact with said contact points when said handle is opera eed.

12. An electric switch. connection including a socket, a lamp in said socket having double contact points, means for making and breaking contact with said points, a switch member having a bifurcated arm adapted to engage said means, and a switch handle connected with said member whereby said member will operate so as to make and break said contact when said handle is turned.

In test iinony whereof I have hereunto affixed my signature.

JASON C. STEARNS. 

